While everyone is making hundreds of "Peak Player A vs. Peak Player B" threads let's discuss what the peak of each player is. Try to narrow it down as much as possible, as in either a tournament or even a single match. And include videos.

She has come close to this form just a few times in her career, but never reached it again.

__________________A single flow'r he sent me, since we met./All tenderly his messenger he chose;
Deep-hearted, pure, with scented dew still wet - One perfect rose.I knew the language of the floweret;/'My fragile leaves,' it said, 'his heart enclose.'
Love long has taken for his amulet/One perfect rose.Why is it no one ever sent me yet/One perfect limousine, do you suppose?
Ah no, it's always just my luck to get/One perfect rose.